Reliance on Internal Audit Departments

Statement on Auditing Standards No. 9 (SAS 9) discusses the role of a client′s internal audit department (IAD) in the independent auditor′s examination. Despite the benefits of reliance on the client′s IAD to both the auditor and client, evidence indicates that SAS 9 has not been effectively implemented in practice. This article illustrates the use of the Analytic Hierarchy Process to develop a judgement aid for determining the overall reliance to be placed on a client′s IAD. The judgement aid illustrated may represent an initial step towards effectively implementing auditing standards requiring a great deal of subjective judgement in practice.